Conveyer and mixer.



J. A. THOMAS.

GONVEYER AND MIXER. APPLICATION FILED JAN. 4, 1911.

Patented Jul 18, 1911.

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awn/m4 \5 Q/vitwuozov l STATES PATENT OFFICE.

JOHN A. THOMAS, OF ZANESVILLE, OHIO, ASSIGNOR OF ONE-HALF TO SAMUEL ,A.

WELLER, OF ZANESVILLE, OHIO.

I Specification of Letters Patent.

Patented July 18, 1911.

Original application filed July 18, 1910, Serial No.'571 812. Dividedand this application filed January 4,

1911. Serial No. 600,829.

To all wlw'm it may concern:

Be it known that I, JOHN A. THOMAS, a citizen of the United States ofAmerica, residing at Zanesville, in the county of Muskingum and State ofOhio, have invented certain new and useful Improvements in Conveyers andMixers, of which the following is a specification.

' invention relates to conveyers and and has for its object theprovision proved structure for conducting mamixers, of an 'terial from ahopper to a mixing chamber,

together with means for varying and controlling the amount of suchmaterial delivered.

Further objects and advantages of the invention will be set forth in thedetailed description which now follows. I

In the accompanying drawing, Figure 1 is a vertical section of a hopper,conveyer and mixing chamber, constructed and arranged in accordance withthe invention, and, Fig. 2 is a face view of a slide employed inconjunction therewith.

Like numerals designate corresponding parts in both of the figures ofthe drawing.

Referring to the drawing, the numeral 5 designates a hopper whichcommunicates at its lower end with a horizontally arranged cylinder 6.This cylinder in turn is in communication at the end farthest from thehopper, with a mixing chamber 7.

The conveyer herein shown and described is like that shown in mycopending application,,Ser. .No. 571,812, filed July 13, 1910. Disposedwithin the horizontal casing 6 is a spiral conveyer 8 that is carried bya shaft 9, said shaft being journaled in bearings 10 and 11. A slide 12has a slot-ted extension 13 through which a set screw 14 passes, thisscrew serving to bind the slide at any adjusted height. The lowerportion of the slide is slotted at- 15 to adapt it to straddle the shaft9 and the spiral con to clear the slide.

I am aware of the fact that it has been proposed to use slides foradjusting the flow of material to a spiral conveyer, but I am not awarethat any structure has ever been employed wherein the spiral of theconveyer is cut out for the reception of the slide so that part of theconveyer lies upon each side of the slide.

Where the conveyer lies entirely outside eyer 8 is cut out as at 16 ofthe slide it is difiicult to cause the material to engage with theconveyer. In the present structure, enough of the conveyer lies insideof the slide to start the material from the bottom of the hopper. As isclearly illustrated in F ig."2, one side of the slide is cut away at thebottom. at 17 so that even-when the slide is in its lowermost position,enough of an opening is left to accommodate the amount of material thatwill be forced therethrough by the action of the comparatively shortspiral that lies to the left of said slide.

From the foregoing description, it will be seen that simple'andeflicient means are herein provided for accomplishing the objectsof theinvention, but whilethe elements shown and described, are well adaptedto serve the purposes for which they are intended, it is to beunderstood that the invention is not limited to the precise constructionset forth, but includes within its pur- View such changes as may be madethe scope of the appended claims.

Having described my invention, what I claim is:

1. In a device of the character described, the combination with ahopper, of a horizontally arranged casing at the bottom thereof, aspiral conveyer lying partly in said chamber and partly in the hopper,and a vertically adjustable slide, said spiral being away for theaccommodation of said. s e.

2. In a device of the character described, the combination with ahopper, of a horizontally arranged casing, at the bottom thereof, aspiral conveyer said chamber and partly in the hopper, and a verticallyadjustable slide,-said spiral being cut away for the accommodation ofsaid slide, and said slide being cut away to straddle the shaft of thespiral conveyer.

3. In a device of the character described, the combination with ahopper, of a horizontally arranged casing at the bottom thereof, aspiralconveyer lying partly in said chamber cut away for the accommodation ofsaid slide, and said slide being cut away to straddle the shaft of thespiral conveyer, one side of the lower end of said slide being shorterthan the other. a Y

lying partly inand partly in the hopper, and- Y a vertically adjustableslide, said spiral being within 2 eeenae 4. In a device of the charaemrdescribed the cornbinatien With a hopper, of a horizontal cylindricalchamber communicating With the bot-tom of said hopper a spiral c011-Veyer lying partly in said hopper and partly in said chamber andcomprising a shaft, a slide having a slotted extension which lies uponthe exterior of the hopper, and a set screw for binding said slide invarious posi- 10 tions, said slide straddling the shaftot the spiralconveyer and said spiral eonveyer being cut away for the reception ofsaid slide.

In testimony whereof I afiix my signature in presence of two witnesses.

- JQHPN A. THUh/IAS.

Witnesses MAY Ramon, E. F. lnAL.

